DevTools [Element]: Fix tab order of color format switcher in color-picker
DevTools [Element]: Fix tab order of color format switcher in color-picker

Earlier, tab order of color format switcher button in color-picker wasn't in sync with the visual representation of where that button was located.
On pressing tab with focus on slider, focus landed on format switcher even though text elements appears before it. This change fixes that issue. Now, tabbing moves from slider to text elements then, to format switcher
as it visually appears.

Gif before change: https://imgur.com/6ynXbyn
Gif after change: https://imgur.com/zh1EwN6

Bug: 963183
Change-Id: Idcb1f909cbc8cf5d442546b40da3294d1191b2c1
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1931304
Commit-Queue: Chandani Shrestha <52538cdd559ab5325fe6b80437501fc583a9e806@microsoft.com>
Reviewed-by: Mike Jackson <99f87a6916722b2afede8077f5cd676395cda818@microsoft.com>

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